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Carbapenem



  Carbapenems are a class of beta-lactam antibiotics with a broad spectrum of antibacterial activity, and have a structure which renders them highly resistant to beta-lactamases. Carbapenem antibiotics were originally developed from thienamycin, a naturally-derived product of Streptomyces cattleya.[1]

Additional recommended knowledge

The following drugs belong to the carbapenem class:

These agents have the broadest antibacterial spectrum compared to other beta-lactam classes such as penicillins and cephalosporins. Additionally they are generally resistant to the typical bacterial beta-lactamase enzymes which are one of the principal resistance mechanisms of bacteria. They are active against both Gram positive and gram negative bacteria, with the exception of intracellular bacteria, such as the Chlamydiae.

The carbapenems are structurally very similar to the penicillins, but the sulfur atom in position 1 of the structure has been replaced with a carbon atom, and hence the name of the group, the carbapenems.

Due to their expanded spectra, the desire to avoid generation of resistance and the fact that they have generally poor oral bioavailability, they are administered intravenously in hospital settings for more serious infections. However, research is underway to develop an effective oral carbapenem.[2]

References

  1. ^ Birnbaum J, Kahan FM, Kropp H, MacDonald JS (1985). "Carbapenems, a new class of beta-lactam antibiotics. Discovery and development of imipenem/cilastatin". Am. J. Med. 78 (6A): 3-21. PMID 3859213.
  2. ^ Kumagai T, Tamai S, Abe T, Hikda M (2002). "Current Status of Oral Carbapenem Development". Current Medicinal Chemistry -Anti-Infective Agents 1: 1-14.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Carbapenem". A list of authors is available in Wikipedia.
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